CVE-2026-77620

Vector is a high-performance observability data pipeline. From 0.15.0 until 0.57.0, the logstash source feeds each decompressed frame back into its decoder without limiting nested compression depth. An unauthenticated remote peer that can reach the default 0.0.0.0:5044 listener can send many nested compressed frames, causing recursive decoding that exhausts the worker thread stack and aborts the process. The same nested construction amplifies decompressed input, and process termination can halt log ingestion for every tenant on a shared pipeline. This issue is fixed in version 0.57.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/vectordotdev/vector/commit/57fed991083c9a43d5fda2d5b3bf4718aedf6526
https://github.com/vectordotdev/vector/pull/25825
https://github.com/vectordotdev/vector/releases/tag/v0.57.0
https://github.com/vectordotdev/vector/security/advisories/GHSA-qp6f-fpfx-4gg6

Configurations

No configuration.

History

22 Sep 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-22 16:17

Updated : 2026-09-24 21:23

NVD link : CVE-2026-77620

Mitre link : CVE-2026-77620

CVE.ORG link : CVE-2026-77620

JSON object : View

Products Affected

No product.

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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